package com.heluo.eduservice.listener;

import com.alibaba.excel.context.AnalysisContext;
import com.alibaba.excel.event.AnalysisEventListener;
import com.alibaba.excel.metadata.CellData;
import com.heluo.eduservice.entity.EduSubject;
import com.heluo.eduservice.entity.excel.SubjectData;
import com.heluo.eduservice.service.EduSubjectService;
import com.heluo.servicebase.exceptionhandler.HeluoException;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;

import java.util.Map;

public class SubjectExcelListener extends AnalysisEventListener<SubjectData> {
    @Override
    public void invokeHead(Map<Integer, CellData> headMap, AnalysisContext context) {
        System.out.println("表头信息："+headMap);
    }

    public EduSubjectService subjectService;
    public SubjectExcelListener(){

    }

    public SubjectExcelListener(EduSubjectService subjectService) {
        this.subjectService=subjectService;
    }


    @Override
    public void invoke(SubjectData subjectData, AnalysisContext analysisContext) {
        if (subjectData==null){
            throw new HeluoException(20001,"文件数据为空");
        }
        EduSubject existOneSubject = this.existOneSubject(subjectService, subjectData.getOneSubjectName());
        if (existOneSubject==null){
            existOneSubject=new EduSubject();
            existOneSubject.setParentId("0");
            existOneSubject.setTitle(subjectData.getOneSubjectName());
            subjectService.save(existOneSubject);
        }
        String pid=existOneSubject.getId();
        EduSubject existTwoSubject = this.existTwoSubject(subjectService,subjectData.getTwoSubjectName(), pid);
        if(existTwoSubject == null) {
            existTwoSubject = new EduSubject();
            existTwoSubject.setTitle(subjectData.getTwoSubjectName());
            existTwoSubject.setParentId(pid);
            subjectService.save(existTwoSubject);
        }
    }

    @Override
    public void doAfterAllAnalysed(AnalysisContext analysisContext) {

    }

    private EduSubject existOneSubject(EduSubjectService subjectService,String name){
        QueryWrapper<EduSubject> wrapper=new QueryWrapper<>();
        wrapper.eq("title",name);
        wrapper.eq("parent_id","0");
        EduSubject oneSubject=subjectService.getOne(wrapper);
        return oneSubject;
    }

    private EduSubject existTwoSubject(EduSubjectService subjectService,String name,String pid){
        QueryWrapper<EduSubject> wrapper=new QueryWrapper<>();
        wrapper.eq("title",name);
        wrapper.eq("parent_id",pid);
        EduSubject oneSubject=subjectService.getOne(wrapper);
        return oneSubject;
    }


}
